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AdS$_2$ Holography and Effective QFT

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arxiv 2302.13917 v1 pith:46J7MFHL submitted 2023-02-27 hep-th

classification hep-th
keywords effectivequantumtheoryadvantageousaltogetherapproachboundarybreaking
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We discuss AdS$_2$ quantum gravity from an unconventional perspective that emphasizes bulk geometry. In our approach, AdS$_2$ has no boundary, there are no divergences that require renormalization, and the dilaton of JT-gravity can be omitted altogether. The result is the standard Schwarzian theory. However, it may be advantageous that our derivation just relies on conventional AdS/CFT correspondence and effective quantum field theory. For example, it clarifies the symmetry breaking pattern. It also puts the non-compact AdS$_2$ topology on the same footing as compact Riemann surfaces.

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Cited by 1 Pith paper

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    For a non-BPS four-charge D-brane system in N=8 string theory, the worldline potential has no classical zero-energy minimum, so extremality is unattainable; entropy is proposed as the logarithm of the number of isolat...

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